tustvold commented on issue #3589: URL: https://github.com/apache/arrow-rs/issues/3589#issuecomment-1400913675
Looking at how this is typically used I realise the current logic is correct. In particular the common pattern is ``` let cond_array = eq_dyn(lhs, rhs)?; // Now, invoke nullif on the result let array = nullif(lhs, as_boolean_array(&cond_array)?)?; ``` In particular if `lhs` or `rhs` is null, `cond_array` will also be null. The result should only be `null` if `lhs` is null, which is the case if `NULL` passed to `nullif` preserves the nullability of `lhs` in the event of `rhs` being null. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
